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Koner K, Mohata S, Ogaeri Y, Nishiyama Y, Addicoat MA, Banerjee R. Enhancing the Crystallinity of Keto-enamine-Linked Covalent Organic Frameworks through an in situ Protection-Deprotection Strategy. Angew Chem Int Ed Engl 2024; 63:e202316873. [PMID: 38324467 DOI: 10.1002/anie.202316873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/09/2024]
Abstract
β-Keto-enamine-linked 2D covalent organic frameworks (COFs) have emerged as highly robust materials, showing significant potential for practical applications. However, the exclusive reliance on 1,3,5-triformylphloroglucinol (Tp aldehyde) in the design of such COFs often results in the production of non-porous amorphous polymers when combined with certain amine building blocks. Attempts to adjust the crystallinity and porosity by a modulator approach are inefficient because Tp aldehyde readily forms stable β-keto-enamine-linked monomers/oligomers with various aromatic amines through an irreversible keto-enol tautomerization process. Our research employed a unique protection-deprotection strategy to enhance the crystallinity and porosity of β-keto-enamine-linked squaramide-based 2D COFs. Advanced solid-state NMR studies, including 1D 13 C CPMAS, 1 H fast MAS, 15 N CPMAS, 2D 13 C-1 H correlation, 1 H-1 H DQ-SQ, and 14 N-1 H HMQC NMR were used to establish the atomic-level connectivity within the resultant COFs. The TpOMe -Sqm COFs synthesized utilizing this strategy have a surface area of 487 m2 g-1 , significantly higher than similar COFs synthesized using Tp aldehyde. Furthermore, detailed time-dependent PXRD, solid-state 13 C CPMAS NMR, and theoretical DFT studies shed more light on the crystallization and linkage conversion processes in these 2D COFs. Ultimately, we applied this protection-deprotection method to construct novel keto-enamine-linked highly porous organic polymers with a surface area of 1018 m2 g-1 .
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Affiliation(s)
- Kalipada Koner
- Centre for Advanced Functional Materials, Department of Chemical Science, Indian Institute of Science Education and Research, Kolkata Mohanpur, 741246, India
| | - Shibani Mohata
- Centre for Advanced Functional Materials, Department of Chemical Science, Indian Institute of Science Education and Research, Kolkata Mohanpur, 741246, India
| | - Yutaro Ogaeri
- JEOL Ltd. Musashino, Akishima, Tokyo, 196-8558, Japan
| | | | - Matthew A Addicoat
- School of Science and Technology, Nottingham Trent University, Clifton Lane, NG11 8NS, Nottingham, UK
| | - Rahul Banerjee
- Centre for Advanced Functional Materials, Department of Chemical Science, Indian Institute of Science Education and Research, Kolkata Mohanpur, 741246, India
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2
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Oldengott JC, Schnack J, Glaser T. Optimization of Single‐Molecule Magnets by Suppression of Quantum Tunneling of the Magnetization. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000507] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jan Christian Oldengott
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Jürgen Schnack
- Fakultät für Physik Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
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3
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Oldengott J, Richthofen C, Walleck S, Stammler A, Bögge H, Glaser T. Trinuclear Triplesalophen Building Blocks with Terminal Cyanides and Implications for the Spin‐Polarization Mechanism for Low‐Spin Fe
III
and Cr
III
Ions. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jan Oldengott
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Carl‐Georg Richthofen
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Stephan Walleck
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I Fakultät für Chemie Universität Bielefeld Universitätsstr. 25 33615 Bielefeld Germany
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4
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Hoeke V, Stammler A, Bögge H, Glaser T. Does Symmetry Influence the Properties of [Mn III6Cr III] 3+Single-Molecule Magnets? Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Veronika Hoeke
- Lehrstuhl für Anorganische Chemie I; Fakultät für Chemie; Universität Bielefeld; Universitätsstr. 25 33615 Bielefeld Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie I; Fakultät für Chemie; Universität Bielefeld; Universitätsstr. 25 33615 Bielefeld Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie I; Fakultät für Chemie; Universität Bielefeld; Universitätsstr. 25 33615 Bielefeld Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I; Fakultät für Chemie; Universität Bielefeld; Universitätsstr. 25 33615 Bielefeld Germany
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5
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Yamazaki S, Nishiyama K, Yagi S, Haraguchi T, Akitsu T. Crystal structure of 3,6-dihy-droxy-4,5-di-methyl-benzene-1,2-dicarbaldehyde. Acta Crystallogr E Crystallogr Commun 2018; 74:1424-1426. [PMID: 30319793 PMCID: PMC6176455 DOI: 10.1107/s2056989018012495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/04/2018] [Indexed: 11/10/2022]
Abstract
The title compound, C10H10O4, was synthesized from tetra-methyl-1,4-benzo-quinone. In the crystal, the almost planar mol-ecule (r.m.s. deviation = 0.024 Å) forms intra-molecular hydrogen bonds between the aldehyde and hy-droxy groups and exhibits C 2v symmetry. This achiral mol-ecule crystallizes in the chiral space group P21 with inter-molecular O-H⋯O and C-H⋯O hydrogen bonding and C-H⋯π and C=O⋯π inter-actions stabilizing the crystal packing.
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Affiliation(s)
- Shu Yamazaki
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kazuki Nishiyama
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Shiomi Yagi
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Tomoyuki Haraguchi
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takashiro Akitsu
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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6
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Pandit YA, Shah SJ, Rath SP. Unusual Stabilization of Dication Diradical Intermediate of Dizinc(II) Porphyrin Dimer. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800247] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Younis Ahmad Pandit
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| | - Syed Jehanger Shah
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| | - Sankar Prasad Rath
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
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7
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Lippert KA, Mukherjee C, Broschinski JP, Lippert Y, Walleck S, Stammler A, Bögge H, Schnack J, Glaser T. Suppression of Magnetic Quantum Tunneling in a Chiral Single-Molecule Magnet by Ferromagnetic Interactions. Inorg Chem 2017; 56:15119-15129. [DOI: 10.1021/acs.inorgchem.7b02453] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kai-Alexander Lippert
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Chandan Mukherjee
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Jan-Philipp Broschinski
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Yvonne Lippert
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Stephan Walleck
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Anja Stammler
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Hartmut Bögge
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - Jürgen Schnack
- Fakultät für Physik, Universität Bielefeld, Universitätsstrasse
25, D-33615 Bielefeld, Germany
| | - Thorsten Glaser
- Lehrstuhl für
Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany
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8
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Weber B, Kaps E, Dankhoff K. Synthesis of a New Schiff Base-like Trinucleating Ligand and its Copper, Vanadyl, and Iron Complexes - Influence of the Bridging Ligand on the Magnetic Properties. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700277] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Birgit Weber
- Anorganische Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
| | - Eike Kaps
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstr. 5-13 81377 München Germany
| | - Katja Dankhoff
- Anorganische Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
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9
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Mehr SHM, Oshima H, Carta V, Patrick BO, White NG, MacLachlan MJ. Tuning the tautomeric behavior of tris(salicylaldimines). Org Biomol Chem 2017; 15:8418-8424. [PMID: 28952647 DOI: 10.1039/c7ob02058a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Five new tris(N-salicylaldimine) (TSAN) analogues were prepared and characterized. NMR and single-crystal X-ray diffraction studies showed that they are found in different tautomeric forms, ranging from keto-enamine to enol-imine, with two showing intermediate behavior. We present a simple structural model governing the relative stability of the keto-enamine versus enol-imine tautomeric form of TSANs, based on experimental and theoretical findings on the new and existing TSAN analogues. Examination of electron delocalization throughout this range reveals a connection between tautomeric state and whether the substituent is σ or π electron withdrawing/donating. This can be used as a qualitative guide to design TSANs with controlled tautomeric behavior. These results will be helpful to the growing number of researchers in supramolecular chemistry who use TSANs to construct new materials and cages.
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Affiliation(s)
- S Hessam M Mehr
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.
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10
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11
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Glaser T, Hoeke V, Gieb K, Schnack J, Schröder C, Müller P. Quantum tunneling of the magnetization in [MnIII6M]3+ (M=CrIII, MnIII) SMMs: Impact of molecular and crystal symmetry. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.12.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Oldengott J, Stammler A, Bögge H, Glaser T. Enhancing the ferromagnetic coupling in extended phloroglucinol complexes by increasing the metal SOMO–ligand overlap: synthesis and characterization of a trinuclear CoII3 triplesalophen complex. Dalton Trans 2015; 44:9732-5. [DOI: 10.1039/c5dt01255d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The better overlap of the SOMO with the central π-system in the CoII3 than in the CuII3 complex enhances the spin-polarization and thus the ferromagnetic coupling.
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Affiliation(s)
- Jan Oldengott
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
- Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
- Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
- Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
- Germany
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13
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Berionni G, Wu JIC, Schleyer PVR. Aromaticity Evaluations of Planar [6]Radialenes. Org Lett 2014; 16:6116-9. [DOI: 10.1021/ol5029699] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Guillaume Berionni
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstr.
5-13, 81377 München, Germany
| | - Judy I-Chia Wu
- Department
of Chemistry, Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Paul v. R. Schleyer
- Department
of Chemistry, Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
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14
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Feldscher B, Stammler A, Bögge H, Glaser T. Aromatic Versus Heteroradialene Character in Extended Thiophloroglucinol Ligands and their Trinuclear Nickel(II) Complexes. Chem Asian J 2014; 9:2205-18. [DOI: 10.1002/asia.201402272] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Indexed: 11/11/2022]
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15
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Mukherjee C, Hoeke V, Stammler A, Bögge H, Schnack J, Glaser T. Switching from antiferromagnetic to ferromagnetic coupling in heptanuclear [Mt6Mc]n+ complexes by going from an achiral to a chiral triplesalen ligand. Dalton Trans 2014; 43:9690-703. [DOI: 10.1039/c4dt00670d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The heptanuclear complexes [(chandRR)2Mt6{FeII(CN)6}]2+ (Mt = MnIII, FeIII) exhibit ferromagnetic interactions due to a more efficient spin-polarization mechanism compared to the complexes [(talent-Bu2)2Mt6{Mc(CN)6}]n+ with antiferromagnetic interactions.
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Affiliation(s)
- Chandan Mukherjee
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Veronika Hoeke
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Jürgen Schnack
- Fakultät für Physik
- Universität Bielefeld
- D-33615 Bielefeld, Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33615 Bielefeld, Germany
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16
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Hoeke V, Stammler A, Bögge H, Schnack J, Glaser T. Strong and Anisotropic Superexchange in the Single-Molecule Magnet (SMM) [MnIII6OsIII]3+: Promoting SMM Behavior through 3d–5d Transition Metal Substitution. Inorg Chem 2013; 53:257-68. [DOI: 10.1021/ic4022068] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Veronika Hoeke
- Lehrstuhl für Anorganische Chemie
I, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße
25, D-33615 Bielefeld, Germany
| | - Anja Stammler
- Lehrstuhl für Anorganische Chemie
I, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße
25, D-33615 Bielefeld, Germany
| | - Hartmut Bögge
- Lehrstuhl für Anorganische Chemie
I, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße
25, D-33615 Bielefeld, Germany
| | - Jürgen Schnack
- Fakultät für Physik, Universität Bielefeld, Universitätsstraße 25, D-33615 Bielefeld, Germany
| | - Thorsten Glaser
- Lehrstuhl für Anorganische Chemie
I, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße
25, D-33615 Bielefeld, Germany
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17
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Krickemeyer E, Kaiser Y, Stammler A, Bögge H, Glaser T. Synthesis, Structural, Spectroscopic, Electrochemical, Magnetic, and Catalytic Properties of the Trinuclear MnIIITriplesalen Complex [(talen t-Bu 2){Mn(OAc)}3] Exhibiting Three Salen-Subunits in a β-cis-Conformation. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300129] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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